Ellis Ludwig-Leone (born 1989) is an American composer and songwriter based in Brooklyn, New York. Since 2012, he has led the chamber pop group San Fermin with whom he has released four studio albums, most recently 2020's The Cormorant. Outside of San Fermin, he has composed for a wide variety of contemporary classical ensembles and organizations, including New York City Ballet, Indianapolis Symphony Orchestra, and Brooklyn Youth Chorus, and often works with choreographer Troy Schumacher, harpist Lavinia Meijer, Attacca Quartet, and singer-songwriter Allen Tate.